EU AI Act Article 50: the deadline marketers missed
EU AI Act Article 50 applies since 2 August 2026 and covers more than high-risk AI. Four transparency obligations hit marketing teams now. Read the checklist.
Article 50 of the EU AI Act went live on 2 August 2026, and most marketing teams were not ready. This post is built from the Commission’s guidelines, the act text, and the threads where media buyers compare notes. The rules cover far more than high-risk AI. A “made with AI” caption is not enough, and the deferral everyone quotes is narrower than it looks. Everything here is based on the EC guidelines and the act text, dated as of August 2026.
WarningThe dates that matter, as of August 2026: Article 50 applies since 2 August 2026 (EC guidelines). The AI Omnibus defers only the machine-readable marking sub-obligation for systems already on the market, to 2 December 2026 (the AI Act guide). Watermark-detection interoperability runs to 2 February 2027 (Paul Weiss). Chatbot and deepfake disclosure were never deferred.
What is Article 50 and when did it start applying?
Article 50 is the transparency chapter of the EU AI Act. It creates four obligations for providers and deployers of certain AI systems. The rules cover any system in the article’s situations, not just high-risk ones (the AI Act guide). Open-source systems are not exempt.
The act covers four situations, each mapped to a paragraph.
AI that talks to people : paragraph 50(1) AI that generates synthetic content : paragraph 50(2) Emotion recognition or biometric categorisation : paragraph 50(3) Deepfakes or text on public-interest matters : paragraph 50(4)
The obligations apply from 2 August 2026 (EC guidelines), and the Commission adopted final guidelines on 20 July 2026 (Cooley). The Digital Omnibus granted one narrow relief. Machine-readable marking for systems already on the market moves to 2 December 2026. Everything else started on time.
What changed for marketing teams on August 2?
Most marketing teams are deployers under the act, and the deployer obligations started on time. The table maps the four obligations to who carries them.
| Obligation | Who | What it means | Start |
|---|---|---|---|
| 50(1) Chatbot disclosure | Providers of chatbots and assistants | Users learn they are talking to AI, at first interaction | 2 Aug 2026 |
| 50(2) Machine-readable marking | Providers of generative AI | Outputs are marked and detectable as AI-generated | 2 Aug 2026 (2 Dec 2026 for existing systems) |
| 50(3) Emotion recognition notice | Deployers | People exposed to emotion AI are informed | 2 Aug 2026 |
| 50(4) Deepfake and text disclosure | Deployers | Deepfakes are labelled; public-interest AI text is disclosed unless human-reviewed | 2 Aug 2026 |
Source: the AI Act guide, Paul Weiss.
The one most content teams will touch is 50(4). AI-generated text published to inform the public on public-interest matters must be disclosed as AI-generated (r/Journalism). The carve-out is real human review with editorial responsibility, and cursory approval does not count (the AI Act guide). Product copy and ad descriptions are rarely public-interest text. Blog posts about how the industry works, like this one, can be.
No retroactive labelling applies. Content generated or published before 2 August 2026 does not need to be re-labelled (Paul Weiss).
Why the machine-readable part is the one everyone missed
A “made with AI” caption is not compliance with Article 50(2). The requirement is machine-readable marking, so detection tools can check provenance (the AI Act guide). That means C2PA metadata, watermarks, or similar technical markings. A caption is a human label, and it does not satisfy that requirement.
The deferral covers only this sub-obligation. It applies only to generative systems already on the market before 2 August 2026 (Paul Weiss). Teams that read it as “labelling is postponed” are reading too far (CSA). Deepfake disclosure and chatbot disclosure were live on day one.
Provider-side marking is arriving anyway, because Anthropic now embeds machine-readable watermarks in generated text (r/artificial). The Claude Opus 5 release notes cover the same shift for marketers. The Code of Practice on AI-generated content is turning the technical details into a practical benchmark (EC). The code is voluntary, while the article is not.
NoteThis post is based on the EC guidelines and the act text, not on legal advice and not on hands-on testing of the rules. I am a marketer, not a lawyer. If your team is in scope, get a real review before you ship anything; the fines are not a number you want to test.
Do the rules hit AI-generated ads and creative?
Yes, where the content counts as a deepfake. The act defines a deepfake narrowly. It is AI-generated or manipulated image, audio or video that resembles existing people, places or events. To count, it must falsely appear authentic (Article 3(60)). An ad with a synthetic spokesperson can be a deepfake. AI-generated UGC-style video can too, and so can a manipulated product shot (r/advertising).
Two limits matter. Content that is clearly fantastical, like dragons or people flying, falls outside the deepfake definition (the AI Act guide). Artistic, creative or satirical works get a lighter touch, so you disclose AI involvement without ruining the work (Paul Weiss).
Does this apply to content published before August 2?
No. Content generated or published before 2 August 2026 does not need retroactive labelling (Paul Weiss).
Is a "made with AI" caption enough?
Not for Article 50(2). The obligation is machine-readable marking so detection tools can verify provenance (the AI Act guide).
Do AI-generated ads count as deepfakes?
When they resemble existing persons, objects, places or events and would falsely appear authentic. Clearly fantastical content sits outside the definition (the AI Act guide).
Are agencies responsible as deployers?
Deployers are the party using the system, and agencies producing content for clients sit on that side of the line. The deployer obligations in 50(3) and 50(4) are the ones that hit content production (the AI Act guide).
What are the penalties and who enforces them?
Fines run up to EUR 15 million or 3% of worldwide annual turnover, whichever is higher. Article 99 sets that scale (the AI Act explorer), and Stibbe confirms it. Enforcement is shared between the Commission’s AI Office and national market surveillance authorities (EC).
In practice, enforcement will likely start with the obvious cases: unlabelled deepfakes at scale, not honest explainer posts. The high-volume surfaces for marketing teams are AI ad creative, catalogue images, and synthetic people in video (r/PPC).
A practical checklist for marketing teams
- Inventory where AI touches the public surface: ads, catalogues, chatbots, blog posts, social content.
- Check whether your tools emit machine-readable provenance, like C2PA, metadata or watermarks.
- Put disclosure in the creative workflow, not in a footer nobody reads.
- Set up the human review and editorial responsibility process for any public-interest text.
- Track the Code of Practice; it is voluntary but expected to become the compliance benchmark (EC).
The same inventory discipline shows up in AI content workflows that hold up. Meta’s AI creative tools changed the disclosure conversation for media buyers. Platform disclosure rules have been landing all year, and the EU version now sits on top of them.
The Bottom Line
- Article 50 applies since 2 August 2026, and it covers more than high-risk AI.
- A “made with AI” caption does not satisfy the machine-readable marking obligation.
- Only the marking sub-obligation for existing systems is deferred, to 2 December 2026.
- Deepfakes in ads and public-interest text are the surfaces marketing teams need to fix.
- Fines go up to EUR 15 million or 3% of turnover; get a real review if you are in scope.
Filed under News & Analysis. Related reading: ChatGPT Ads.